科学60秒:避孕药真的只能避孕吗?
The most obvious effect of birth control pills is, well...birth control. But the pill may have subtler effects, too. Like influencing which guy a woman goes for, and her satisfaction with him—in...
科学60秒:身体温暖保健康
As a bitter winter storm rages on the east coast, it’s hard to knock being warm-blooded. But what about the metabolic cost of maintaining a high body temperature? Well, a new study finds that we...
政治:欧美担心伊朗建国会发生暴乱
政治:欧美担心伊朗建国会发生暴乱The nation of Iran marking a milestone later on this week. On Thursday, the country will celebrate the anniversary of when it became an Islamic republic. This goes...
CNN新闻100篇 News Item 39
CNNNo commitment by President-elect Barack Obama on a missile defense program in Eastern Europe. That's according to a senior Obama advisor. The statement comes after claims on the Polish pres